blaSHV

The study identifies SHV-2a, an extended-spectrum beta-lactamase in Pseudomonas aeruginosa, which confers resistance to ceftazidime, cefotaxime, and aztreonam.

The study identified multiple extended-spectrum beta-lactamase (ESBL) genes, including bla TEM-53, bla TEM-63, and novel bla SHV variants (SHV-19 to SHV-22), in Klebsiella pneumoniae isolates from a South African hospital.

The study identified multiple extended-spectrum beta-lactamase (ESBL) genes, including bla TEM-53, bla TEM-63, and novel bla SHV variants (SHV-19 to SHV-22), in Klebsiella pneumoniae isolates from a South African hospital.

The study identifies SHV-14, a novel beta-lactamase variant in Klebsiella pneumoniae isolates, and TEM-29, a known extended-spectrum beta-lactamase, as contributors to beta-lactam resistance.

The study describes a real-time PCR and melting curve analysis method for detecting SHV extended-spectrum beta-lactamases, which are responsible for resistance to expanded-spectrum cephalosporins.

The study identifies a plasmid encoding SHV-12, TEM-1, and a variant of IMP-2 metallo-beta-lactamase, IMP-8, from a clinical isolate of Klebsiella pneumoniae. IMP-8 differs from IMP-2 by four nucleotide substitutions leading to two amino acid changes and is carried on an integron-borne gene cassette.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies two novel beta-lactamases, SHV-25 and SHV-26, in Klebsiella pneumoniae isolates from northern Taiwan. SHV-25 is a non-ESBL, while SHV-26 exhibits reduced susceptibility to clavulanic acid.

The study identifies SHV-16, a novel extended-spectrum beta-lactamase with a pentapeptide duplication in the omega loop, which confers high-level resistance to ceftazidime.

The study identifies SHV-1, SHV-32, and SHV-33 beta-lactamases as chromosomally encoded enzymes in Klebsiella pneumoniae, demonstrating their role in resistance to various β-lactam antibiotics.

The study identifies SHV-1, SHV-32, and SHV-33 beta-lactamases as chromosomally encoded enzymes in Klebsiella pneumoniae, demonstrating their role in resistance to various β-lactam antibiotics.

The study identifies SHV-1, SHV-32, and SHV-33 beta-lactamases as chromosomally encoded enzymes in Klebsiella pneumoniae, demonstrating their role in resistance to various β-lactam antibiotics.

The study identifies various SHV-type beta-lactamase genes, including SHV-1, SHV-2, SHV-3, SHV-4, SHV-5, and SHV-7, which confer resistance to ceftazidime. These genes were detected using PCR-RFLP and PCR-SSCP techniques.

The study identifies multiple Klebsiella pneumoniae clones carrying TEM-4, SHV-2, SHV-2a, SHV-5, CTX-M-10, and CTX-M-9 extended-spectrum beta-lactamases, highlighting the clonal diversity and spread of these resistance genes in a single hospital over a 12-year period.

The study identifies multiple Klebsiella pneumoniae clones carrying TEM-4, SHV-2, SHV-2a, SHV-5, CTX-M-10, and CTX-M-9 extended-spectrum beta-lactamases, highlighting the clonal diversity and spread of these resistance genes in a single hospital over a 12-year period.

The study identifies multiple Klebsiella pneumoniae clones carrying TEM-4, SHV-2, SHV-2a, SHV-5, CTX-M-10, and CTX-M-9 extended-spectrum beta-lactamases, highlighting the clonal diversity and spread of these resistance genes in a single hospital over a 12-year period.

The study identifies three CTX-M beta-lactamases (CTX-M-9, CTX-M-13, and CTX-M-14) and SHV-12 as significant contributors to extended-spectrum beta-lactamase (ESBL) resistance in Enterobacteriaceae in China.

The study identified and characterized SHV beta-lactamase variants, including blaSHV-2a and blaSHV-12, which confer resistance to oxyimino cephalosporins and monobactams, while blaSHV-11 and blaSHV-1 do not.

The study identified and characterized SHV beta-lactamase variants, including blaSHV-2a and blaSHV-12, which confer resistance to oxyimino cephalosporins and monobactams, while blaSHV-11 and blaSHV-1 do not.

The study identifies several extended-spectrum beta-lactamases (ESBLs) including TEM-52, SHV-2a, TEM-88, CMY-1-like, and CTX-M-14 in Escherichia coli and Klebsiella pneumoniae isolates from children with bloodstream infections. These ESBLs confer resistance to various beta-lactam antibiotics.

The study identifies a novel plasmid-encoded class C beta-lactamase, MOX-2, in a multidrug-resistant Klebsiella pneumoniae isolate from Greece, which exhibits high hydrolytic activity against various beta-lactam antibiotics.

The study identifies that amino acid substitutions at Ambler position Gly238 in the SHV-1 beta-lactamase confer resistance to penicillins and cephalosporins, with the Gly238Ala mutation showing the highest resistance.

The study identifies a novel chromosome-encoded SHV-beta-lactamase, SHV-38, which hydrolyzes imipenem and ceftazidime, compromising the efficacy of these antibiotics against Klebsiella pneumoniae.

The study identified CTX-M-3 and SHV-43 beta-lactamases as significant contributors to extended-spectrum beta-lactamase (ESBL) production in clinical isolates of Enterobacteriaceae in a Chinese hospital.

The study identified and characterized several new AmpC-type beta-lactamase genes, including blaEcloK992004.1, blaEcloK995120.1, blaEcloK99230, blaEareK9911729, blaEcloK9973, and blaEcloK9914325, which confer resistance to various beta-lactam antibiotics. Additionally, SHV-12 was identified as an extended-spectrum beta-lactamase.

The study identifies various extended-spectrum beta-lactamases (ESBLs) including TEM-24b, TEM-21, TEM-15, TEM-19, TEM-3, SHV-4, and CTX-M-1, which confer resistance to multiple beta-lactam antibiotics in Enterobacteriaceae isolates from community and private healthcare centers.

The study identifies two novel oxacillinases, OXA-48 and OXA-47, which confer resistance to imipenem and ceftazidime, respectively, in a multidrug-resistant Klebsiella pneumoniae isolate.

The study identifies SHV-5 extended-spectrum beta-lactamase as a significant cause of resistance in Klebsiella pneumoniae isolates, highlighting its role in the clonal and horizontal dissemination of multidrug-resistant strains in a Mexican pediatric hospital.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies several extended-spectrum beta-lactamases (ESBLs) in Canadian hospitals, including novel variants such as TEM-115, TEM-120, SHV-40, SHV-41, and SHV-42, highlighting the diversity and emergence of these resistance mechanisms in Escherichia coli and Klebsiella spp.

The study identifies SHV-12-like extended-spectrum beta-lactamase-producing strains of Salmonella enterica serotypes Babelsberg and Enteritidis isolated in France among infants adopted from Mali. The SHV-12 beta-lactamase was found to confer resistance to cephalosporins, while TEM beta-lactamase conferred resistance to penicillins and cephalosporins.

The study identified three families of class A chromosomal beta-lactamase genes in Klebsiella pneumoniae: SHV, LEN, and OKP. These genes confer resistance to beta-lactam antibiotics such as ampicillin, carbenicillin, and ticarcillin.

The study identified CTX-M-3, TEM-47, and SHV-5 extended-spectrum beta-lactamases in Serratia marcescens isolates from two hospitals in Danzig, Poland, over a 5-year period. These enzymes conferred resistance to various beta-lactam antibiotics.

The study reports the first detection of bla CTX-M-15 in Salmonella and identifies multiple beta-lactamase genes (bla TEM-1b, bla SHV-5, bla CTX-M-15, and bla CMY-2) in a multidrug-resistant Salmonella enterica serotype Infantis isolate from Honduras.

The study identifies SHV-49, a novel inhibitor-resistant beta-lactamase in a clinical isolate of Klebsiella pneumoniae, and SHV-11, a chromosomal penicillinase variant, both contributing to beta-lactam resistance.

The study identifies SHV-49, a novel inhibitor-resistant beta-lactamase in a clinical isolate of Klebsiella pneumoniae, and SHV-11, a chromosomal penicillinase variant, both contributing to beta-lactam resistance.

The study identifies blaSHV alleles with mutations at codons 238 and 240 that confer resistance to extended-spectrum beta-lactam antibiotics in Klebsiella pneumoniae isolates.

The study identifies SHV-57, a novel extended-spectrum beta-lactamase that confers resistance to ceftazidime but not cefazolin.

The study identified the presence of extended-spectrum beta-lactamases (ESBLs) in Enterobacter isolates, including TEM-1, SHV-12, CTX-M-2, and CTX-M-26, which confer resistance to various beta-lactam antibiotics.

The study identified the dominant extended-spectrum beta-lactamase SHV-2a and characterized the novel TEM-132 enzyme in Enterobacteriaceae isolates from a Slovak hospital.

The study identifies the widespread presence of CTX-M-15 and SHV-5a extended-spectrum beta-lactamases in Enterobacteriaceae in Lebanon, highlighting their role in resistance to ceftazidime and cefotaxime.

The study reports the emergence of reduced susceptibility to cefepime due to the acquisition of the SHV-2 extended-spectrum beta-lactamase in Klebsiella pneumoniae, leading to therapeutic failure.

The study identified bla CMY genes as the primary mechanism of extended-spectrum cephalosporin resistance in non-Typhi Salmonella, including the first report of bla CMY in E. coli O157:H7. It also detected bla SHV in a Salmonella isolate.

The study identifies two SHV-type extended-spectrum beta-lactamases, SHV-7 and SHV-30, produced by a clinical isolate of Enterobacter cloacae. Both enzymes confer resistance to multiple beta-lactam antibiotics.

The study identifies two SHV-type extended-spectrum beta-lactamases, SHV-7 and SHV-30, produced by a clinical isolate of Enterobacter cloacae. Both enzymes confer resistance to multiple beta-lactam antibiotics.

The study identified various extended-spectrum beta-lactamase (ESBL) genes, including bla SHV-2a, bla SHV-5, bla SHV-8, bla SHV-11, bla SHV-12, bla TEM-1, bla TEM-24, bla TEM-93, and bla TEM-116, in Klebsiella pneumoniae isolates. These genes confer resistance to cephalosporins, penicillins, and monobactams.